Angie and Brendon wouldn't be doing anything wrong leaving the dogs as long as they were in caring hands. I know that they love M&M more than basically anything, they'd never abandon them or leave them with someone they're unsure of. Angie and Brendon both really deserve this trip, and there's nothing wrong with them taking it.
But I know that you guys will make the decision that you feel is the best, so I'll support that decision 100%!